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About 
About

Beijing Valve General Factory Co., Ltd., formerly known as Beijing Valve General Factory, was established in 1952. It is a key backbone enterprise of the former Ministry of Machinery Industry manufacturing high and medium pressure valves and steam traps.
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News 
News

Beijing Valve General Factory Co., Ltd. is a member of the material supply network of large enterprises such as China National Petroleum Corporation, China Petrochemical Corporation, and State Electric Power Corporation.
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- Company news
- Industry news
Product 
Product

It has been rated as a famous trademark of Beijing since 2009, and has won the “National High-tech Enterprise Certificate” for seven consecutive years.
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Technical 
Technical

The vice chairman unit of the National Valve Industry Association and a member unit of the National Quality Inspection Association.Obtained a municipal valve R&D center institution.
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Application 
Application

The product varieties of Beijing Valve Factory include various types of steam trap valves, liquefied petroleum gas gate valves, globe valves, ball valves, check valves, butterfly valves, high temperature...
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- Domestic performance
- Foreign performance
Careers 
Careers

There is currently 1 pressure pipeline expert committee member of the State Administration of Market Supervision and Administration.One member of the National Valve Standardization Technical Committee is responsible for the review of valve standards.
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- Recruitment position
- Apply for a position
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Product center

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Current location：

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Products

Check valve

H7B41X type hydraulic control check valve

Number of views:

1000

H7B41X type hydraulic control check valve

Retail price

0.0

元

Market price

0.0

元

Number of views:

1000

Product serial number

Quantity

Stock:

服务热线010-8928 3399

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企业荣誉企业风采

Product introduction

Parameters

【Product use】

H7B41X-16, H7B41X-16C type hydraulic control check valve is suitable for the return water pipe of atmospheric pressure boiler. It uses the pressure change of the transmission pipeline to control the opening and closing of this valve. This valve is a normally closed valve, which can effectively prevent the boiler from overflowing when the circulating water pump stops working due to sudden power failure or other reasons. It can replace expensive electromagnetic control systems.

Product performance parameters

Model number	PN	Working pressure/MPa	Applicable temperature/℃	Applicable media
H7B41X-16	16	1.6	≤70	Water and oil products
H7B41X-16C	16	1.6	≤425	Water and oil products

【Product parts and materials】

Model number	Material
	Valve body, valve cover	Stem, disc, seat	Spring
H7B41X-16	Gray cast iron	2Cr13	50CrVA
H7B41X-16C	WCB

【Product shape and structure size (mm)】

DN	L	D	D1	D2	b	z0000d	H	H1	Weight/kg
40	220	150	110	88	18	4000017.5	175	115	28
50	250	165	125	102	20	4000017.5	175	115	28
65	280	185	145	122	20	4000017.5	195	135	34
80	310	200	160	133	20	8000017.5	215	155	40
100	350	220	180	158	24	8000017.5	215	155	49
125	400	250	210	184	24	8000017.5	240	170	78
150	450	285	240	212	26	8000022	240	170	111
200	500	340	295	268	26	12000022	280	190	155